Vivaldi is a cross-platform web browser built for – and with – the web. A browser based on the Blink engine (same in Chrome and Chromium) that is fast, but also a browser that is rich in functionality, highly flexible and puts the user first. A browser that is made for you. Vivaldi is produced with love by a founding team of browser pioneers, including former CEO Jon Stephenson von Tetzchner, who co-founded and led Opera Software. Vivaldi’s interface is very customizable. Vivaldi combines simplicity and fashion to create a basic, highly customizable interface that provides everything a internet user could need. The browser allows users to customize the appearance of UI elements such as background color, overall theme, address bar and tab positioning, and start pages. Vivaldi features the ability to "stack" and "tile" tabs, annotate web pages, add notes to bookmarks and much more.

Vivaldi 1.15.1147.36 release notes:

Window Background Image - a really quick and easy way to spice up the look of your browser. From now on, you can modify the appearance of your browser by selecting an image and setting it up as your window background. Simply go to Settings > Appearance, and you can find this new feature just below the Window Appearance section. You can easily get started with a repeating pattern that is available as the pre-set. You can also experiment with the default pattern with various themes to browse seamlessly.

Dynamic Bookmarks - Baked into the browser itself, Vivaldi comprehensive Bookmarks system encourages you to rely less on extensions and gives you as much control as possible. Vivaldi already offers numerous ways that help you to access your favorite collection of sites from the Bookmark Panel, Bookmark manager, Bookmark Bar and Speed Dial. With Version 1.15, you can access your bookmarks from the main Menu, a very convenient option.

All round improvements:

Capture tweaks - The Capture feature is a great example of our user-centric approach. One of our most popular built-in tools to communicate online now allows you to select the last option to persist even after restarting the browser.

Full-Screen mode enhancements - If you use the full-screen mode often, you can enjoy more screen real estate as you can easily toggle the appearance of the UI on and off through the Keyboard Shortcuts. While you are in the full-screen mode, you can access the various elements of the UI such Address Bar and Panels.

Better sound - Fixed some major issues for those who have encountered HTML5 audio problems where sound would not play or has played at wrong speed.